A Portuguese man-of-war washed up on a beach (Getty Images) Tourists visiting Spain and its islands are being warned of an increase in jellyfish washing up on its popular beaches ahead of the peak ...

MADRID - A vast flotilla of small, virtually undetectable jellyfish have stung hundreds of people on Spanish beaches this week — a swimmer's nightmare that biologists say will become increasingly ...

Swarms of "fried egg jellyfish", capable of delivering a sting to humans, have invaded Spanish beaches this month. The recent surge has confirmed earlier predictions that the population of these sea ...

AN URGENT holiday warning has been issued as “monster” jellyfish as big as dustbin lids with a painful sting have been spotted lurking around Spanish beaches. One group of tourists were left stunned ...

Add Yahoo as a preferred source to see more of our stories on Google. Portuguese man o’ war can cause a nasty sting and is particularly painful (Getty Images) Tourists visiting Spain and its islands ...

Tourists visiting Spain and its islands are being warned of an increase in jellyfish washing up on its popular beaches ahead of the peak summer season. Spanish news outlets, such as theMajorca Daily ...